Competition Clutch STU Steel Flywheel Honda Civic Si 06-11 | 2-800-STU Wheel Bolt Pattern_5x114.3 Enhance the STI wing's downforce

Enhance the STI wing's downforce characteristics and add some flare with the Noble CS Style Gurney Flap

Gloss black

monitor RPM with the built-in converter

Delrin thermoplastic provides great temperature resistance

The OS Super Lock LSD miniaturized pressure ring and superior spline-through-side-gear design allows for fitment of 28 plates

Competition Clutch STU Steel Flywheel Honda Civic Si 06-11 | 2-800-STU Wheel Bolt Pattern_5x114.3 Enhance the STI wing's downforceInstallation of a lightweight flywheel on your engine will reduce rotational mass on the crankshaft, producing faster revs, less drive train loss, quicker acceleration and more power to the wheels. The Competition Clutch ST lightweight flywheels are designed for street strip driven applications and are well suited for Stage 1 and Stage 2 clutch kit counterparts. The STU ultra lightweight flywheel is even lighter, designed for extremely fast gear